对数字图书馆网络管理和维护工作具有一定借鉴意义。
This has certain reference significance for digital library network management and maintenance.
为了有效地发挥SDH提供的灵活性，需要先进的网络管理和维护能力。
Advanced network management and maintenance capabilities are required to effectively manage the flexibility provided by SDH.
随着IP网络规模指数式增长而带来的对网络管理和维护的迫切需求，流量矩阵估计已成为当前的热点研究问题。
With the exponential increase in the size of the IP network and the urgent demands in network management and maintenance, traffic matrix estimation has currently become an interesting topic.
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